.content-section {
  background: url('../images/pro/pro_bgc.png') no-repeat center center;
  background-size: 100% 100%;
  width: 100%;
  height: 920px;
}

.pro-container {
  width: 1200px;
  margin: 0 auto;
}

.pro-title-wrapper h3 {
  font-size: 48px;
  font-weight: bold;
  text-align: center;
  padding-top: 154px;
  background-color: transparent;
  color: #ffffff;
}

.pro-title-wrapper .pro-sub-t {
  color: #ddd;
  text-align: center;
  font-size: 24px;
  margin-top: 10px;
}

.pro-content-item {
  display: flex;
  margin-top: 58px;
}

.pro-item {
  width: 288px;
  box-sizing: border-box;
  position: relative;
  transition: all 200;
  height: 442px;
}

.pro-item:hover {
  cursor: pointer;
}

.pro-b-a {
  display: block;
  color: #fff;
  margin: 0 14px;
  text-align: center;
  font-size: 18px;
  line-height: 44px;
  border-radius: 18px;
  background-color: #5285bd;
  margin-top: 30px;
}

.pro-b-a-2 {
  background-color: #479fcd;
}

.pro-b-a-3 {
  background-color: #9072bd;
}

.pro-b-a-4 {
  background-color: #5fd1b5;
}

.pro-itme-b-firstp {
  font-size: 36px;
}

.pro-itme-b-secp {
  font-size: 18px;
  margin-top: 10px;
}

.pos-itme-b {
  color: #fff;
  text-align: center;
}

.pro-item-1,
.pro-item-wrap-1 {
  background-color: #2766ac;
  color: #ffffff;
}

.pro-item-2 {
  background-color: #1987c0;
}

.pro-item-3 {
  background-color: #744fad;
}

.pro-item-4 {
  background-color: #37c6a3;
}

.pro-item:hover .pro-item-b {
  height: 266px;
}

.pro-item-b {
  padding-bottom: 22px;
  padding-top: 50px;
  overflow: hidden;
  z-index: 999;
  position: absolute;
  width: 100%;
  left: 0;
  bottom: 0;
  height: 236px;
  box-sizing: border-box;
  transition: all .3s;
}

.pro-item-t {
  height: 206px;
  transition: all .3;
  z-index: 1;
  overflow: hidden;
  width: 288px;
}

.pro-item-t img {
  width: 100%;
  height: 100%;
}

.flex-wrap {
  display: flex;
  justify-content: space-between;
}

.item-a {
  display: block;
}







@media (min-width: 1900px) {
  .pro-container {
    width: 100%;
    padding: 0 9.3%;
    box-sizing: border-box;
  }

  .pro-item {
    width: 373px;
    height: 506px;
  }

  .pro-itme-b-secp {
    font-size: 22px;
  }

  .pro-item-t {
    height: 270px;
    width: 100%;
  }
}

@media (min-width: 1700px) and (max-width: 1899px) {
  .pro-container {
    width: 100%;
    padding: 0 5%;
    box-sizing: border-box;
  }

  .pro-item {
    width: 373px;
    height: 506px;
  }
  .pro-itme-b-secp {
    font-size: 22px;
  }

  .pro-item-t {
    height: 270px;
    width: 100%;
  }
}
